Ok so I just got done reading the xehanort reports and thought of this. Xehanort says in the reports that he is going to take the comatose ven to his home to die/fade/whatever away in peace. This scene is the very begging scene with ven shirtless on destiny islands. So Xehanort is from destiny Islands we now know.
Now on to my point. In the scene where Terra is talking to young Riku and Riku turns into his older self and then the mystery guy (which we now know is probably Xehanort because of point stated above). Could it be possible to assume that Master Xehanort is like Riku's grandfather or something? I mean riku thought of the island the same way Xehanort did and riku has balanced light and darkness like Xehanort wanted to do with the realms. Also their hair is the same color, though that isnt really important.
Now on to my point. In the scene where Terra is talking to young Riku and Riku turns into his older self and then the mystery guy (which we now know is probably Xehanort because of point stated above). Could it be possible to assume that Master Xehanort is like Riku's grandfather or something? I mean riku thought of the island the same way Xehanort did and riku has balanced light and darkness like Xehanort wanted to do with the realms. Also their hair is the same color, though that isnt really important.